Nested mechanism suitable for thin-wall type shaft sleeve

Abstract

The utility model discloses a nesting mechanism suitable for a thin-wall type shaft sleeve, which belongs to the technical field of nesting processing of mechanical parts and comprises a thin-wall shaft sleeve, a sleeve guiding shaft, a sleeve pressing device and the like, the wall thickness of the thin-wall shaft sleeve is smaller than 2mm, and the sleeve guiding shaft is used for supporting the thin-wall shaft sleeve and preventing the thin-wall shaft sleeve from deforming in the sleeve pressing process. The guide sleeve shaft is in clearance fit with the thin-wall shaft sleeve, the thin-wall shaft sleeve is in interference fit with a component to be subjected to sleeve pressing, the outer diameter of the guide sleeve shaft is matched with the inner diameter of the thin-wall shaft sleeve, and the length of the guide sleeve shaft is not smaller than that of the thin-wall shaft sleeve; the rear end of the sleeve guiding shaft is connected with a sleeve pressing machine through a fixing rod, so that the coaxiality is kept, and the sleeve pressing quality is guaranteed. The device can effectively prevent the thin-wall type shaft sleeve from deforming, improves the sleeve pressing success rate and efficiency, and expands the application range of the device.

Description

TECHNICAL FIELD

[0001] The utility model relates to mechanical component nesting processing technical field, especially in a kind of nesting mechanism suitable for thin-walled shaft sleeve. BACKGROUND

[0002] In the mechanical processing industry, the sleeve of shaft sleeve is a common process.For the shaft sleeve with wall thickness in the range of 2.5-4mm, since it has strong steel, it can usually be directly completed by pressing sleeve machine plus pressing plate, and the shaft sleeve is not easy to deform in the process. However, when facing thin-walled shaft sleeve with wall thickness less than 2mm, since its steel is weak, it is easy to deform or even damage during the pressing process, resulting in failure of pressing. This problem limits the application range of thin-walled shaft sleeve, so a new pressing mechanism needs to be developed to solve this problem. SUMMARY

[0003] The utility model aims at overcoming the deficiency in prior art, provide a kind of nesting mechanism suitable for thin-walled shaft sleeve, can effectively prevent the deformation of thin-walled shaft sleeve in the process of pressing, improve the success rate and efficiency of pressing.

[0004] To achieve the above object, the utility model provides a kind of nesting mechanism suitable for thin-walled shaft sleeve, comprising:

[0005] thin-walled shaft sleeve, the wall thickness of the thin-walled shaft sleeve is less than 2mm;

[0006] lead sleeve shaft, for providing support for the thin-walled shaft sleeve when entering the component to be pressed to prevent the thin-walled shaft sleeve from deforming, the thin-walled shaft sleeve is wrapped around the lead sleeve shaft when pressing, and the lead sleeve shaft can be pulled out from the thin-walled shaft sleeve alone after pressing is completed;

[0007] The lead sleeve shaft and the thin-walled shaft sleeve are gap fit, and the thin-walled shaft sleeve and the component to be pressed are interference fit.

[0008] Further, the outer diameter of the lead sleeve shaft is matched with the inner diameter of the thin-walled shaft sleeve, so that the thin-walled shaft sleeve can be tightly wrapped around the lead sleeve shaft.

[0009] Further, the length of the lead sleeve shaft is not less than the length of the thin-walled shaft sleeve.

[0010] Further, it further includes a pressing device for pressing the thin-walled shaft sleeve, and the pressing device comprises:

[0011] pressing machine, the pressing machine is used to drive the pressing plate to apply pressure to the thin-walled shaft sleeve to be pressed, so that the thin-walled shaft sleeve can be tightly fastened on the component to be pressed, and

[0012] pressing plate, the pressing plate is configured to apply pressure to the thin-walled shaft sleeve during pressing.

[0013] Further, the lead sleeve shaft is provided with a fixing rod away from one end of the thin-wall sleeve, the fixing rod is configured to be inserted into a sleeve pressing machine during nesting to fix the lead sleeve shaft with the sleeve pressing machine, and to pull the lead sleeve shaft out of the thin-wall sleeve after the sleeve pressing is completed.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] (1) The utility model discloses a thin-wall sleeve is provided with internal support by using the lead sleeve shaft, effectively prevent the deformation of the thin-wall sleeve during the sleeve pressing, reduce the rework and waste caused by deformation, improve the sleeve pressing success rate, and the lead sleeve shaft can be easily pulled out after the sleeve pressing is completed, convenient operation, and the assembly of the final product is not affected.

[0016] (2) The utility model discloses a thin-wall sleeve is provided with internal support by using the lead sleeve shaft, effectively prevent the deformation of the thin-wall sleeve during the sleeve pressing, reduce the rework and waste caused by deformation, improve the sleeve pressing success rate, and the lead sleeve shaft can be easily pulled out after the sleeve pressing is completed, convenient operation, and the assembly of the final product is not affected. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 The utility model discloses a thin-wall sleeve is provided with internal support by using the lead sleeve shaft, effectively prevent the deformation of the thin-wall sleeve during the sleeve pressing, reduce the rework and waste caused by deformation, improve the sleeve pressing success rate, and the lead sleeve shaft can be easily pulled out after the sleeve pressing is completed, convenient operation, and the assembly of the final product is not affected.

[0018] Label explanation: 1, lead sleeve shaft, 2, thin-wall sleeve, 3, pressing plate, 4, component to be pressed, 5, sleeve pressing machine. DETAILED DESCRIPTION

[0019] The utility model will be further described below in conjunction with the drawings. The following examples are only used to more clearly illustrate the technical scheme of the utility model, and cannot be used to limit the protection scope of the utility model.

[0020] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "upper", "lower", "horizontal" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as limiting the utility model. The device or element indicated must have a particular orientation, a particular orientation and operation, so it cannot be understood as limiting the utility model. In addition, the terms "first", "second" and the like are only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" and the like can be explicitly or implicitly include one or more features. In the description of the utility model, unless otherwise stated, the meaning of "multiple" is two or more.

[0021] In the description of the utility model, it needs to be explained that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood through specific circumstances.

[0022] As Figure 1 The embodiment provides a nesting mechanism suitable for thin-wall type shaft sleeve, which comprises:

[0023] The thin-wall shaft sleeve 2 is less than 2mm in thickness;

[0024] The sleeve shaft 1 is configured to provide support for the thin-wall shaft sleeve 2 when entering the to-be-pressed sleeve part 4 to prevent the thin-wall shaft sleeve 2 from deforming, and the thin-wall shaft sleeve 2 is wrapped on the sleeve shaft 1 when pressing the sleeve, and the sleeve shaft 1 can be pulled out from the thin-wall shaft sleeve 2 alone after the pressing of the sleeve is completed;

[0025] The thin-wall shaft sleeve 2 is in interference fit with the to-be-pressed sleeve part 4;

[0026] There is a gap between the sleeve shaft 1 and the thin-wall shaft sleeve 2, so that the front end of the sleeve shaft 1 is in sliding fit with the inner hole of the thin-wall type shaft sleeve.

[0027] Specifically, the outer diameter of the sleeve shaft 1 is matched with the inner diameter of the thin-wall shaft sleeve 2, so that the thin-wall shaft sleeve 2 can be tightly wrapped on the sleeve shaft 1.

[0028] Preferably, the sleeve shaft 1 is made of high-strength material to ensure sufficient rigidity and durability.

[0029] Preferably, the surface of the sleeve shaft 1 is specially treated to form a smooth surface, so as to reduce the friction between the sleeve shaft 1 and the thin-wall shaft sleeve 2 and facilitate the pulling out after the pressing of the sleeve.

[0030] Further, the length of the sleeve shaft 1 is not less than the length of the thin-wall shaft sleeve 2.

[0031] Specifically, the nesting mechanism suitable for the thin-wall type shaft sleeve further comprises a pressing device for pressing the thin-wall shaft sleeve 2 on the to-be-pressed sleeve part 4, and the pressing device comprises:

[0032] The pressing machine 5 is used to drive the pressing plate 3 to apply pressure to the to-be-pressed thin-wall shaft sleeve 2, so that the thin-wall type shaft sleeve can be tightly fastened on the to-be-pressed sleeve part 4, and

[0033] The pressing plate 3 is configured to apply pressure to the thin-wall shaft sleeve 2 during the pressing process.

[0034] Further, the rear end of the lead sleeve shaft 1 is connected with the press sleeve machine 5 through the positioning device, so that the lead sleeve shaft 1 keeps coaxial with the thin-walled sleeve during the pressing sleeve process, thereby ensuring the pressing sleeve quality.

[0035] Specifically, the positioning device is a fixed rod configured to be inserted into the press sleeve machine 5 during the nesting process to fix the lead sleeve shaft 1 with the press sleeve machine 5, and to pull the lead sleeve shaft 1 out of the thin-walled sleeve 2 after the pressing sleeve is completed.

[0036] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present application.

Claims

1. A nesting mechanism for thin-walled bushings, characterized in that, Comprising: a thin-walled sleeve, the wall thickness of which is less than 2mm; a lead-in sleeve configured to provide support for the thin-walled sleeve to prevent deformation of the thin-walled sleeve when being pressed into a part to be sleeved, the thin-walled sleeve being wrapped around the lead-in sleeve when being pressed, the lead-in sleeve being capable of being pulled out of the thin-walled sleeve separately after the pressing is completed; the thin-walled sleeve is in interference fit with the part to be sleeved; a gap is provided between the lead-in sleeve and the thin-walled sleeve to form a sliding fit between the front end of the lead-in sleeve and the inner hole of the thin-walled sleeve.

2. The nesting mechanism for thin-wall type bushings according to claim 1, characterized in that, the outer diameter of the lead-in sleeve is matched with the inner diameter of the thin-walled sleeve to enable the thin-walled sleeve to be wrapped tightly around the lead-in sleeve.

3. The nesting mechanism for thin-wall type bushings according to claim 1, wherein the length of the lead-in sleeve is not less than the length of the thin-walled sleeve.

4. The nesting mechanism for thin-wall sleeves of claim 1, wherein, Further comprising a pressing device for pressing the thin-walled sleeve onto the part to be sleeved, the pressing device comprising: a pressing machine configured to drive a pressing plate to apply pressure to the thin-walled sleeve to be sleeved, so that the thin-walled sleeve can be fastened onto the part to be sleeved, and a pressing plate configured to apply pressure to the thin-walled sleeve during the pressing process.

5. The nesting mechanism for thin-wall sleeves of claim 4, wherein, the rear end of the lead-in sleeve is connected to the pressing machine through a positioning device, so that the lead-in sleeve and the thin-walled sleeve maintain coaxiality during the pressing process, thereby ensuring the quality of the pressing.

6. The nesting mechanism for thin-wall sleeves of claim 5, wherein, the positioning device is a fixed rod configured to be inserted into the pressing machine during the wrapping process to fix the lead-in sleeve and the pressing machine, and to pull the lead-in sleeve out of the thin-walled sleeve after the pressing is completed.

Images